Radical Stabilization in Dissolved Humates
نویسندگان
چکیده
منابع مشابه
Stabilization of Free Radical Intermediates
Free radicals intermediates are formed on the surface of metal oxide semiconductors, namely Ti02 and Fe203, following the light-induced charge separation upon band-gap illu-mination. These radicals appear to adhere strongly to the ~.urfaces of the small colloidal particles (diameters between 5 and 20 nm) employed in this study. A second electron-transfer step yielding the observed end-products ...
متن کاملStabilization of Lactate Oxidase Flavin Anion Radical
The red-colored flavin anion radical of lactate oxidase was formed by photochemical reduction. The radical was found to be reoxidized readily by molecular oxygen, with a rate constant of 4 X lo5 M "I min" at pH 7.0, 25°C. On mixing the radical under anaerobic conditions with pyruvate, a change in spectrum typical of charge transfer interaction was found. The complex was composed of 1 eq of pyru...
متن کاملMechanical bonds and topological effects in radical dimer stabilization.
While mechanical bonding stabilizes tetrathiafulvalene (TTF) radical dimers, the question arises: what role does topology play in catenanes containing TTF units? Here, we report how topology, together with mechanical bonding, in isomeric [3]- and doubly interlocked [2]catenanes controls the formation of TTF radical dimers within their structural frameworks, including a ring-in-ring complex (for...
متن کاملEffects of supplementing humates on rumen fermentation in Holstein steers
________________________________________________________________________________ Abstract Humates have nitrogen-binding qualities that could prove to be beneficial in the retention of ammonia nitrogen in the rumen of Holstein steers fed a high-concentrate finishing diet. Therefore, four ruminally fistulated Holstein steers were used in a 4 x 4 Latin Square design to determine the effects of hum...
متن کاملArtificial Metalloproteins for Binding and Stabilization of a Semiquinone Radical
The interaction of a number of first-row transition-metal ions with a 2,2'-bipyridyl alanine (bpyA) unit incorporated into the lactococcal multidrug resistance regulator (LmrR) scaffold is reported. The composition of the active site is shown to influence binding affinities. In the case of Fe(II), we demonstrate the need of additional ligating residues, in particular those containing carboxylat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Open Journal of Physical Chemistry
سال: 2011
ISSN: 2162-1969,2162-1977
DOI: 10.4236/ojpc.2011.13008